Bacterial Suspension Imaging
Bacterial Suspension Imaging - Related Videos
03:37
Infecting Flies with Bacterial Suspension Using a Nanoinjector
0 Views •
2025
This video demonstrates the nano-injection of bacterial suspension into the fly body cavity, resulting in bacterial multiplication and infection. The fly's immune response clears some bacteria, while others escape immune clearance and survive within the host causing an infection.
03:57
Bacterial Endophthalmitis Mouse Model: A Method for Generating Bacterial Endophthalmitis via Intravitreal Injection of Bacterial Suspension into Eye of Mouse
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2025
This video describes a method for generating a mouse model that mimics bacterial endophthalmitis – an intraocular infection resulting from a bacterial invasion into the eye’s vitreous cavity – via intravitreal injection of a bacterial suspension into the eye. This mouse model helps study the disease mechanism and evaluate therapeutics for it.
05:06
Bioluminescent Bacterial Imaging In Vivo
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Cited by 9 •
2012
This article describes the administration of lux-tagged bacteria to mice and subsequent in vivo analysis using IVIS bioluminescence imaging.
14:05
Imaging InlC Secretion to Investigate Cellular Infection by the Bacterial Pathogen Listeria monocytogenes
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Cited by 7 •
2013
Listeria monocytogenes is a Gram positive bacterial pathogen frequently used as a major model for the study of intracellular parasitism. Imaging late L. monocytogenes infection stages within the context of small-interfering RNA screens allows for the global study of cellular pathways required for bacterial infection of target host cells.
10:03
Bacterial Immobilization for Imaging by Atomic Force Microscopy
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Cited by 36 •
2011
Live Gram-negative and Gram-positive bacteria can be immobilized on gelatin-coated mica and imaged in liquid using Atomic Force Microscopy (AFM).
FAQs
Transmitted light creates contrast from differences between bacterial cells and the surrounding liquid, while fluorescent light provides contrast through fluorescence-based signals. These approaches allow the imaging system to distinguish cells within the suspension and support observation of shape, abundance, organization, and behavior. The selected contrast method therefore influences which cellular features can be measured most clearly.
Time-lapse acquisition records successive images rather than a single view, allowing researchers to follow changes in bacterial movement and organization over time. Comparing frames can reveal motility, growth, aggregation, and responses to changing experimental or environmental conditions. This temporal information complements measurements taken from individual images and supports quantitative analysis of dynamic bacterial behavior.
Image-based measurements can address several properties at once, including cell morphology, abundance, organization, motility, growth, and aggregation. Examining these features together helps connect visible changes in the population with experimental or environmental conditions. The resulting measurements provide quantitative evidence rather than relying only on qualitative visual descriptions of bacterial cells.
A typical workflow begins by preparing the bacterial suspension and placing it in an imaging chamber that maintains the free-floating population for observation. Researchers then use transmitted or fluorescent illumination to generate cell-to-background contrast, collect images, and, when behavior over time matters, repeat acquisition for time-lapse analysis. The images can then support measurements of morphology, abundance, or movement.
Researchers can compare suspension images collected under different experimental or environmental conditions and examine changes in cell shape, abundance, organization, movement, growth, or aggregation. Because the cells remain dispersed in liquid during observation, the method provides a way to assess how conditions influence a free-floating population. These comparisons can produce quantitative evidence for biological interpretation.
The approach supports research in microbiology, bacterial physiology, ecology, and biotechnology. In microbiology and physiology, it can characterize population behavior and cellular features; in ecology, it can examine organization or interactions with environmental conditions; and in biotechnology, it can provide measurements of bacterial growth, aggregation, or responses relevant to experimental systems.